The effect of different contact materials on the fretting fatigue strength of an aluminium alloy

The fretting fatigue strength of Al-4Mg-0.7Mn in contact with pads of aluminium, copper, 70 30 brass, and 0.7 C steel has been determined. Copper and brass produced little reduction in fatigue strength because of the severe wear of the pads, The steel and aluminium pads produced reductions of 34% an...

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Bibliographic Details
Published in:Wear 1973-01, Vol.26 (2), p.253-260
Main Authors: Wharton, M.H., Waterhouse, R.B., Hirakawa, K., Nishioka, K.
Format: Article
Language:English
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Summary:The fretting fatigue strength of Al-4Mg-0.7Mn in contact with pads of aluminium, copper, 70 30 brass, and 0.7 C steel has been determined. Copper and brass produced little reduction in fatigue strength because of the severe wear of the pads, The steel and aluminium pads produced reductions of 34% and 28% respectively. The effect of fretting on fatigue strength is explained in terms of the added shear stress arising from the frictional force between the pad and the specimen. Although the coefficient of friction is initially low it rises after 500–1000 cycles to approximately 1.0 and remains constant at this figure.
ISSN:0043-1648
1873-2577
DOI:10.1016/0043-1648(73)90139-7